Dr. Shirk graduated from Palmer College of Chiropractic February 1995 and started practice in Mason City, Ia. April 1st 1995. Acute Care Chiropractic is a Mom and Pop operation with Dr. Shirk's wife Lisa running the front desk. We believe in taking our time with patients to give them the proper care they deserve. Dr. Shirk is certified in a number of different chiropractic techniques.